Answer:
In step 4, -9 is added to 9 to make 0. This is an example of the inverse property of addition. -9 and 9 are inverses, and when inverses are added together they cancel out and equal 0.
(by the way, since you know it involves addition and there's only one answer choice which does, it has to be that one)
isabel earned 350 points while she was playing blasting robot. isabel's mom earned 3 times as many points as isabel. how many points did isabel's mom earn?
Answers
Isabel's mom earned 1050 (350*3)
it would be 750 points . you can add 350+350+350=750. You could also multiply 350 times 3. You would also get the same answer which is 750.
If 28% of a sum is 100.80 what is the sum
Answers
$360.00*.28= 100.80
Or do a portion
28%/100%=100.8/x
Then cross multiply
10080=28x
x=360
How do you do the scale factor
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If you have two similar geometric figures, the ratio of their corresponding sides is called the scale factor. To find the scale factor, locate two corresponding sides, one on each figure. Write the ratio of one length to the other to find the scale factor from one figure to the other
How would you write the following phrase as a number expression?eight more than triple a number.
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The answer would be 8 + 3x
All professional athletes earn a lot of money.Wes plays professional football so he makes a lot of money. What type of reasoning is this ?
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This is an example of deductive reasoning.
Deductive reasoning is when a conclusion is reached based on logic.The first statement says that football players make a lot of money. Since Wes plays football logically it follows that he makes a lot of money.
Solve.
4/6 = 24/a
What is a
Answers
multiply 4 by 24 and get 6 then multiply 6 by 6 and get 36